ranma

                uint32_t x0 = spdif_dmaring.peekword(0);
                uint32_t x1 = spdif_dmaring.peekword(32);
                spdif_dmaring.advance(64);

                uint32_t state = BMC_DECODE_START;
                uint32_t out = 0;
                uint32_t tmp = x0;
                state = bmc_decode[(state & 0x700) | (tmp & 0xff)]; tmp >>= 8; out >>= 4; out |= state << 28;
                state = bmc_decode[(state & 0x700) | (tmp & 0xff)]; tmp >>= 8; out >>= 4; out |= state << 28;
                state = bmc_decode[(state & 0x700) | (tmp & 0xff)]; tmp >>= 8; out >>= 4; out |= state << 28;